diff --git a/requirements.txt b/requirements.txt
index c28b81c..dfaf84e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ jaxlib==0.1.69
 kiwisolver==1.2.0
 matplotlib==3.2.1
 numdifftools==0.9.39
-numpy==1.18.5
+numpy==1.22.0
 opt-einsum==3.2.1
 -e git+https://github.com/sigma-py/pacopy.git@8d23487b356644421a25ce02462470acce5864f6#egg=pacopy
 pyparsing==2.4.7